Incandescent gas-burner.



WITNESSES 0. WI EDERHOLD. INGANDESGBNT GAS BURNER. APPLICATION FILED FBB.8,1910.

Patented Dec. 24, 1912.

'2 SHEETS-SHEET 1.

INVENTOR WW1 .44

. ATTORNEYS 0. WIEDERHQLD. INGANDESOENT GAS BURNER. APPLIOATION FILED FEB.8, 1910.

2 SHEETS-SHEET 2.

2Z a. m mil. W

,4 TTORNEYS Patented Dec.24, 1912.

oscu. vfinnna'nonn, or JERSEY our, NEW mm mcann'nscnn'r GAS-BURNER,

Specification of Letters Patent Application flied February 8,1910. 8e ria1 No. 542,778.

- To all whom it may concern:

13s it known that I, OsoAn Wmonnnonn, a citizen of the United States,'and'resident of Jersey City, county of Hudson, State of vNew Jersey, have invented jcertain new and useful Improvements in Incandescent Gas- Burners, of which the following is a specification. v

My invention relates to burners in which an incandescent body is used in conjunction with a blow pipe orBunsen tube using acetylene, natural, artificial gas or .an oxy-hydrogen flame and has for its object to rovide a burner of this description, in w ich the refractory body is of such a nature as:

to present two opposite faces to. the effects of oppositely directed flames. Thus when the body is brought to incandescence the light from one side may be projected against a suitable reflector to produce an extended shaft'of light, in which case the light from the opposite side of said body may be used to illuminate the surroundings in close proximity to or immediately in front of the lamp inwhich the burner, is used. My invention in this form is particularly useful in connection with'automobile or locomotive .head lights. My improved burner may also be located between two reflectors arranged at an angle thereto or beneath a single cone shaped reflector for car lightingand similar purposes.

A further object of my invention is to mount this lighting body in sucha manner that the same may be easily removed from the burner-without undue labor so as to permit of a ready interchange of lighting odies for any purpose.-

" Other objects of my invention will appear from' the annexed'description and the features of novelty will be pointed out in the appended claims.

Reference is to be had to the accompanying drawings in which- Figure 1 is a front elevation of my improved burner; Fig. 2 is a sectional view on the line 22 of Fig. 1; Fig. 3 shows a diagrammatic sectional view of an automobile head light with my burner in position thereon; Fig. 4 is a similar view of a lamp for car lighting purposes with my invention applied thereto; Fig. 5 is a face view and Fig. 6 a sectio'nal view of another form of my invention.

1 represents the lamp body which may be of any suitable construction and is provided with a reflector 2 constructed in'any well known and customer manner I t 34s a pipe or tu which is connected with thesource of gas or fuel supply and is [provided with a screw threaded end 4. YA

Patented Dec. 24,

nipple 5 is attached to the screw threaded .end 4 and is provided with a screw threaded (projection 6. This upwardly extending ro ectlon 6 is adapte to screw into the ower end of a tube 7, and' is provided with a passage 8, which communicates with the source of gas supply, and with a chamber 7 in the tube 7. The outletend 8 of the passage 8 is very smalland need'be only about 6/100'0-of an inch in diameter if the burner is used in connection with acetylene gas, so that it will readily be seen that with. this construction the consumption of gas necessary to secure thev best results-is a very Zsmall one. Of course, if the gas is a weaker gas or not as rich in carbon as acetylene gas the outlet end 8 of the passage 8 will naturally have to be enlarged. The tube 7 is-further formed with apertures 10 for the admission of air to the chamber 7 in which the proper mixture of air and gas takes place. The'upper end of said tube 7 is adapted to screw into a screw threaded collar 11 having oppositely extending channels 12 into which the Bunsen tubes 13 are arranged to screw as shown in Fig. 2. These Bunsen tubes comprise U-shaped tubes extending in opposite directions and have their free ends formed with nipples 14 spaced from and projecting toward each other, and preferably made of lava or some other like material capable of withstanding heat.

15 is the lighting body which, when the lamp is in use, is located between the said nipples 14' as clearly shown in Fig. 3. This lighting body is supported on a frame or support 16 as shown in Fig. 1 provided with members 17 which project first outwardly and then downwardly. These downwardly extending portions are adapted fori nsertion into tubes 18 located at opposite ends of a cross bar-'19, which is secured by a locknut 20 upon a projection forming part of the screw threaded collar 11,. downwardly cxtendingportions are loosely fitted in said tubes so as-to be easily inserted therein and readily removed therefrom. The li hting body itself may be of the same kin as described. and shown in my pending application Serial N 0. 447,510,

The said filed February 13, 1.909; and comprises a mixture of thorium and cerium "nitrates which has been reduced to the form of oxids by heating or otherwise and then compressed may be made in several forms such as described in my application Serial No. 447,510 and also as follows: By taking the ashes from incandescent gas mantles and making them slightly moist then compressing the same into the holder, then adding a solution containing 50 per cent. of thorium nitrate,

491} percent. of distilled water and per cent. of cerium. This mixture is applied to the holder about five drops at a time so as to form successive layers or films and then baking ear-h layer or film with a blow pipe after each application until the refractory body is of a solid coherent mass. I have found that about fifteen applications are sufficient to complete the operation of thus building up said refractory body in successive layers. The refractory or lighting body can also be prepared by laying the holder or ring flat upon a smooth surface of fire brick or non-combustible material which thus forms a bottom for said ring then adding the liquid thorium solution as above given, that is about five drops at a time, and baking it with a blow pipe after each application until the holder or ring is completely In operation the Bunsen flames are di rected against opposite surfaces of the lighting body one of which in case of automobile or locomotive headlights faces toward the reflector and the other of which faces in the opposite direction or toward the front of the lamp. Thus a long shaft of light will be projected from the reflector to illuminate ata distance from the lamp while the forward surface of said lighting body will throw the light in close proximity to or immediately infront'of the lamp. If the invention is used in connection with lamps of the kind shown in Fig. l the opposite surfaces of the lighting or incandescent body will each face a reflector 2 so that the light therefrom will be diffused over an extended area. This reflector 2 may if desired be in the nature of a cone open at opposite ends.

My invention is particularly adapted for use in automobile or other head lights such as locomotive or search lights for army or navy purposes and is especially adapted for army purposes on account of its light weight and small gas consumption. It may also be readily adapted for use in connection with airships of any description on account of its powerful light and light weight, and as hereinbefore brought out the burner is also readily adapted for use in connection with railroad car or other lighting. The lighting body is quickly brought to. incandescence owing to the fact that the Bunsen flames are projected against opposite surfaces thereof and may be easily removed from the burner and as easily returned to operativeposition. The refractory or lighting body being made of thorium and ceriumnitrates it is not necessary to change the position of this refractory body which becomes useless only after a long period of use, a period of at least one thousand hours constant burning being a con-=- servative estimate of itslife. In the common and well-known oxy-hydrogen or calcium light, the position of the calcium pencil has to be gradually changed by rotation so as to always present a new surface to the flame as said pencil is readily consumed by the intense heat of the Bunsen flame. I have also discovered that when the Bunsen flame is projected on a refractory body such as shown in Fig. 2 on opposite sides, it does not take any more gas to bring both sides to incandescence than it does to bring a single surface to incandescence with only. one flame in use. At the same time with the use of two flames directed against opposite sides of the refractory body each side thereof will give proportionately more light, in fact the burner will give about three times as much illumination with the same gasconsumption as when only a single flame is used.

Instead of. applying my refractory ma terial to an open ring as hereinbeforedescribed, the said support may comprise a receptacle 21 having a central partition 22 which divides it into'two separate compart ments each of which may be separately filled as brought out hereinbefore. The partition 22 may be provided with spaced apertures 23 through which platinum wire 24 1s strung so as to cross and to form projections in each compartment. The exposed portion of these wires in each compartment will become embedded in the refractorymaterial as it is applied to the holder and will serve as a means for maintaining said material in position on the body after the said material has shrunk due to the heat and become separated from the inner circumferential edges of said compartments. Projections other than those shown and described may be located in each compartment for the same purpose. This construction of support results in a saving of refractory material so that the cost of the lighting body is reduced without affecting its serviceability; that is a smaller amount of material is required to fill the holder owing to the partition 22 oocupying some of the space in said holder.

I have found that carborundum owing to its heat-withstanding properties is particularly adapted foruse in' making the holders-or supports for refractory material used in connectionwith my invention.

Various changes may be made in the spe cific construction shown and described within the scope of the claims Without departing,

from the spirit of my invention.

I'claim' as my invention: '1. In a burner for incandescent gas lights, a tube in communication with a source of fuel supply, burners connected with said tube and having their' ends spaced from and extehding toward each other, a

1 support carried by saidtubc and extending across the axis thereof at. an angle to the burners, spaced tubular members secured to said mmport, a hghtmg body having faces located between the ends of said burners.

arms projecting from opposite edges of said lighting body and arranged to extend int-J said tubular members whereby said lighting body is removably supported on said t ubu'- lar members in substantially parallel planes at right angles to the axes of the burners and heldagainst any substantial movement in any direction at an angle to said planes. 2. In a burner for incandescent gas lights,

ing material provided with separate compartments facing in opposite directions, and a solid coherent mass composed of the oXids of rare earth metals in each compartment.

Intestimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

osoAii WIEDERHOLD' A WVitnesses JOHN A. KEHLENBECK,

G. V. BAsM ssEN. 

